When it comes to charter aircraft operations, there are permit approval anomalies to be aware of here and there around the world – including mandated security plans and provision of unique documentation. It’s recommended to always review such considerations with your 3rd-party provider well in advance of travel.
Europe is an operating environment where charter aircraft operators typically require permits, but private operators generally do not. This can impact flexibility of operations and last minute schedule change possibilities for operators on charter.
For charter (non-scheduled commercial) operators it can be more challenging traveling to some countries and regions than others, from the documentation and permit perspective. It’s always best to work with your 3rd-party provider, well in advance of day of operation, to confirm all applicable permit/documentation requirements.